Improvement in grain-drills



-A. PUT-NAM.

Grgin- Drill.

Patented June 19, l8'6'6.-

UNITED STATES PATENT OFFICE.

A. PUTNAM, OF OWEGO, NEW YORK.

IMPROVEMENT IN GRAIN-DRILLS.

Specification forming part of Letters Patent No. 55,707, dated June '19,1866.

To all whom it may concern:

Be it known that I, AROHIBALD PUTNAM, of Owego, in the county of Tiogaand State of New York, have invented a new and useful Improvement on aGrain-Drill and Broadcast Sower Combined; and I do hereby declare thatthe followin g is a full, clear, and exact description of theconstruction and operation of the same, reference being had to theannexed drawings, making a part of this specification, in which- Figure1 is a perspective view; Fig. 2, a longitudinal elevation Fig. 3, alatitudinal elevation; Fig. 4:, a transverse section; Fig. 5, atransverse section Fig. 6, a transverse section.

The nature of my invention consists, first, in an improvement upon thecombination of two separate machines into oneviz., the broadcast sowerand the grain-drill.

To enable others skilled in the art to make and use my invention 1 willproceed to describe its construction and operation.

The feed-box is placed upon the center of the machine in the usual way,as seen in Figs. 1 and 2, and its form and the general construction ofthe machine throughout are similar to those already in use, except thearrangement of the hollow teeth, which will be hereinafter described.

Figs. 1 and 4 show the machine arranged for broadcast, the grain beingfed or distributed in the usual way, and dropped through holes in frontof the teeth.

The changing of the machine from a broadcast sower to a grain-drill, andfrom a graindrill to a broadcast sower, consists in adjusting theopenings through the tooth-bars to the feed-box instead of adjusting thefeed-box to the openings D E, which is done by raising the front end ofthe tooth-bars K out of the notch O and sliding them back to notch B,which brings the openings D, for sowing broadcast, directly under thefeed-box F, as seen in Fig. 4, at the same time moving the block L,

which supports the lifting-roller M, to the back end of slot I, as seenin Fig. l, and to change the machine from broadcast to drill is viceversa.

It will be seen that the feed-box remains stationary in the center ofthe machine, thereby leaving the machine always balanced, instead ofmoving it forward to make a broadcast, which throws the load upon thehorses necks. or moving it to the rear of the axle to make a drill,which has a tendency to raise the tongue, thereby throwing the machinealways out of balance, which is the difficulty of all combined machinesheretofore in use.

The second feature is in the arrangement of the teeth. It may be seen bythe annexed drawings that the tops of the teeth or openings whichcommunicate with the feedingapparatus are all in a straight line, asusual, as shown at Fig. 3, but that the teeth are made from twodifferent-shaped patterns-that is to say, every other tooth is formedwith the foot or point projecting ahead of that on either side, as shownat G H, the arrangement of which brings the points of the teeth doublethe distance from each other that they are at the top, thereby obviatingthe common difficulty which has hitherto existed by clogging withstones, sods, stubble, &c.

What I claim, and desire to secure by Letters Patent, is

1. The changing of the machine from agraindrill to a broadcast sower,and from a broadcast sower to a grain-drill, by moving or adjusting thetooth-bars K to the feed-box F, as above described, or its equivalent.

2. By forming the teeth G and H from two different-shaped patterns,which is to incline one forward and the other backward, alternately, inthe manner already set forth and described.

- ARGHIBALD PUTNAM.

Witnesses:

B. G. SPRINGSTEEN, WAKELY SPENCER.

